[Gstreamer-openmax] GstOpenmax demuxer issue

[prafull singh]

Hi,

I'm using command
 gst-launch-0.10 playbin uri=file:///home/prafull/downloads/sample_iPod.m4v

Here I'm using omx_audio sink and omx_video sink for playing audio and
video. Here I'm able to render audio data but not video data. Here I'm
getting warning
*gstomx_base_videodec.c:settings_changed_cb

(gst-launch-0.10:7956): GStreamer-WARNING **: pad omxh264dec0:src returned
caps which are not a real subset of its template caps
*  *
*
(gst-launch-0.10:7672): GStreamer-WARNING **: pad omxh264dec0:src returned
caps which are not a real subset of its template caps

(gst-launch-0.10:7672): GStreamer-WARNING **: pad omxh264dec0:src returned
caps which are not a real subset of its template caps
gstomx_base_sink.c:handle_event
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
gstomx_base_sink.c:handle_event
gstomx_base_sink.c: got EOS eventgstomx_base_sink.c:render
gstomx_base_sink.c:render
gstomx_base_sink.c:render
gstomx_base_sink.c:render

*I tried by manually setting caps but then also not working*.
omx_h264dec !
"video/x-raw-yuv,format=(fourcc)UYVY,width=640,height=480,framerate=24/1"
> ! omx_videosink

Actually I observed that maximum range of framerate in
gstomx_base_video_decoder.c src Template is 30/1 but by setting_changed
return value is more than this range that's why it is not able to negotiate
caps. Where I should change to make caps negotiation proper between  decoder
and sink component.



On Tue, Dec 9, 2008 at 9:37 PM, Felipe Contreras <felipe.contreras at gmail.com>
wrote:
> On Tue, Dec 9, 2008 at 5:03 PM, prafull singh
> <singh.prafull0206 at gmail.com> wrote:
>> Hi Felipe,
>>
>>   Thanks for ur reply. Presently I'm testing only raw video files.
>> This is I'm testing with gst-launch tool with following command-
>>
>> gst-launch-0.10 -v filesrc
>> location=H264_raw/h264_bl_1.0__176x144_15.0fs_64kbps__001.264  !
>> omx_h264dec ! omx_videosink
>>
>> Here omx_videosink is using openmaxIL render component. In this case
>> also I'm not able to render video stream, infact setcaps funtion in
>> gstomx_videosink.c is not being called. I'm using raw h264 files so
>> there should not be issue of demuxer. Can u suggest this video sink
>> element in gstopenmax is working fine or I need to make some changes
>> to play this raw video file.
>
> The video sink is experimental, you would probably need to make some
> changes to properly handle the caps. Another option is to manually set
> the caps between omx_h264dec and omx_videosink.
>
> For example:
> omx_h264dec !
"video/x-raw-yuv,format=(fourcc)UYVY,width=640,height=480,framerate=24/1"
> ! omx_videosink
>
> Also, if there's no demuxer then you would probably want to turn off
> the timestamps in the decoder: omx_h264dec use-timestamps=false.
>
> And finally you might try to use h264parse before the decoder.
>
> --
> Felipe Contreras
>
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